Energy enters in ecosystem through
Herbivores
Carnivores
Producers
Decomposers
$PAR$ stands for
$A$ : In secondary productivity, no new organic matter is formed.
$R$ : It is only utilisation of part of food manufactured by primary producers in building of consumer biomass.
$A$ : Detrivores and decomposers hold up a part of nutrients contained in detritus.
$R$ : Immobilised nutrients cannot be available for solubilisation after the death of saprotrophs.
Which of the following is producer of plant kingdom
The rate of formation of new organic matter by rabbit in a grassland, is called